Microfiber is lightweight, solid-colored polyester. Exterior features two zip pockets (one front and one back) and two side slip pockets Front U-shaped zip compartment features four slip pockets, three pen slip pockets and an ID window Main compartment features two mesh slip pockets Laptop compartment Padded shoulder straps are shaped for optimum comfort on body Back panel is padded, and features a shaped trolley sleeve Zip closures Accommodates up to a 15" laptop Capacity 25 L. Dimensions: 12.0" w x 16.5" h x 7.5" d with 32.0" adjustable strap and 2.75" handle drop